Retractable Blowing Unit for Printer Cover Maintenance
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Solution Overview
Problem
Existing recording apparatuses face difficulties in maintenance, particularly in the transport path, due to the placement of drying apparatuses that obstruct access during paper jams or similar issues.
Innovation Solution
A recording apparatus with a cover that can be opened and closed, featuring a retractable blowing unit with intake openings on its outer surface and exposed filters, allowing for easy maintenance and air flow while the cover is closed, and an operation assistance unit to facilitate lifting the cover against its weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the drying apparatus is disposed in the transport path close to the recording medium to blow air at sufficient speed, then the drying function is improved, but maintenance access to the transport path becomes difficult
Solution Approach 1:
The drying apparatus is designed to be movable rather than fixed. It can be positioned close to the recording medium during operation to achieve sufficient air blowing speed, and retracted away from the transport path during maintenance to provide easy access. This dynamic repositioning capability resolves the contradiction between maintaining high drying performance and enabling easy maintenance.
2Power
If the cover weight is increased due to attachment of the blowing unit, then the drying function is enhanced, but the ease of opening and closing the cover deteriorates
Solution Approach 1:
A spring mechanism is provided to assist the lifting operation of the cover. The spring counteracts the increased weight caused by the attached blowing unit, reducing the effort required to open and close the cover. This allows the cover to be easily operated even with the additional weight of the drying apparatus attached.
3Reliability
If the filter is provided inside the cover, then the drying function is maintained, but filter maintenance requires opening the cover
Solution Approach 1:
The filter is extracted from the interior of the cover and positioned on the exterior surface. This allows the filter to be accessed and maintained (cleaned or replaced) without opening the cover, while still serving the drying function when the cover is closed. The filter is integrated into the blowing unit structure that attaches to the cover exterior.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables effortless maintenance of the transport path by retracting the blowing unit, allows for external air intake and filter replacement without opening the cover, and simplifies the opening and closing operations, even with increased weight from the attached blowing unit.
Implementation Method 1
a blowing unit, provided in the cover, that is capable of blowing air toward the recording medium that is on the transport path
Implementation Method 2
a suction fan for impelling air from the exterior
Implementation Method 3
a heater for warming the imported air
Implementation Method 4
a filter is provided in the intake opening so as to be exposed on the outside of the cover
Data Source
AI summary
A recording apparatus includes: a transport path for transporting a recording medium; a cover that is capable of being opened and closed and that covers the transport path when the cover is in a closed state; and a blowing unit, provided in the cover, that is capable of blowing air toward the recording medium that is on the transport path when the cover is in a closed state and that retracts from the transport path when the cover is in an open state.